Abstract: In a vehicle emergency call apparatus, a call determining unit determines whether or not a degree of damage to at least one occupant seated in at least one vehicle seat is a predetermined degree required for an emergency call to be made, based on a detected impact magnitude applied to a vehicle and a predetermined impact magnitude. The call determining unit sets the predetermined impact magnitude to a first impact magnitude when a belt-wearing detector detects that at least one occupant seated in the at least one vehicle seat does not wear the seatbelt, and sets the predetermined impact magnitude to a second impact magnitude when the belt-wearing detector detects that the at least one occupant seated in the at least one vehicle seat wears the seatbelt. The first impact magnitude is set to be smaller than the second impact magnitude.

Abstract: A detection device for side collision of a vehicle includes: an outer plate of a vehicle side door; an inner plate of the side door arranged separately from the outer plate; a reinforcing member arranged between the outer plate and the inner plate and having a bending rigidity higher than a bending rigidity of the outer plate; a detection subject member provided by at least one of the inner plate and a member fixed to the inner plate; a sensor detecting a separate distance between the detection subject member and the reinforcing member; and a determination element determining that the vehicle collides with an object based on an output value of the sensor.

Abstract: An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impedance change in the coil. The detection coil includes multiple coil portions provided by one wire. One coil portion has a side adjacent to a corresponding side of another coil portion. The side and the corresponding side extend along with a direction, and the side has a current flowing direction, which is the same as the corresponding side.

Abstract: A collision detecting system for a vehicle has a pressure detecting member for detecting a pressure in a substantially closed space which is arranged at a periphery portion of the vehicle, and a vibration detecting member for detecting a vibration of the vehicle. The pressure in the space is calculated for a detection of a vehicle collision, based on pressure signals detected by the pressure detecting member and vibration signals detected by the vibration detecting member. Therefore, the influence of the vehicle vibration on the detection of the pressure in the space can be restricted, thus improving the detection of the vehicle collision.

Abstract: In a side door collision detecting system for a vehicle, an internal pressure sensor detects a door internal pressure of a side door of the vehicle. The internal pressure sensor outputs an internal pressure signal based on the door internal pressure, and the internal pressure sensor is installed in an interior space of the side door. A physical value sensor detects a physical value and outputs a physical value signal based on the physical value. The physical value sensor is installed in the interior space of the side door. A collision determining circuit determines whether the side collision occurs based on the internal pressure signal and the physical value signal.

Abstract: A collision detection system for a vehicle is provided with multiple hollow members which are arranged at a periphery portion of the vehicle and define therein substantially closed spaces, at least one housing defining therein a substantially closed space, multiple transferring members for respectively communicating the spaces in the hollow members with the space in the housing, at least one detection unit which is arranged in the housing to detect a status of air in the housing, and a control unit. The control unit determines whether or not there occurs a collision of the vehicle based on detection signals from the detection unit.

Abstract: Right and left side pressure sensors are provided to left and right doors, respectively, of a vehicle to sense a pressure in a door interior space of the corresponding door. An ECU computes a corrective pressure change amount that is obtained by correcting a change amount of a pressure, which is measured with a collided side one of the pressure sensors arranged in a collided one of the left and right doors that is collided with an object, based on a pressure, which is measured with a non-collided side one of the pressure sensors arranged in a non-collided one of the left and right doors that is not collided with the object. The ECU determines occurrence of the collision of the object based on the corrective pressure change amount.

Abstract: A side door of a vehicle includes an outer panel, an inner panel, a reinforcing member, a front attaching part, a rear attaching part, and an acceleration sensor. The reinforcing member is located between the outer panel and the inner panel. The front attaching part and a rear attaching part are coupled with the reinforcing member. The front attaching part is fixed to a front attached portion provided at one of a front end portion of the outer panel and a front end portion of the inner panel. The rear attaching part is fixed to a rear attached portion provided at one of a rear end portion of the outer panel and a rear end portion of the inner panel. The acceleration sensor is disposed at one of the end portions.

Abstract: A detection device for side collision of a vehicle includes: an outer plate of a vehicle side door; an inner plate of the side door arranged separately from the outer plate; a reinforcing member arranged between the outer plate and the inner plate and having a bending rigidity higher than a bending rigidity of the outer plate; a detection subject member provided by at least one of the inner plate and a member fixed to the inner plate; a sensor detecting a separate distance between the detection subject member and the reinforcing member; and a determination element determining that the vehicle collides with an object based on an output value of the sensor.

Abstract: A collision detector includes a deformable portion and a planar sensor accompanied by a process circuit and a collision determination unit. The deformable portion is configured to be deformed on a collision on an object. The planar sensor has a planar coil formed as a planar winding of winding wire to be deformed along the deformation of the deformable portion. The process circuit generates an electric signal that is in proportion to a self inductance Ls of the planar coil. The collision determination unit determines whether the object collided with the deformable member based on the change of the electric signal.

Abstract: A pressure sensor includes a case with an air passageway having a first opening leading to an inside of the case and a second opening leading to an outside of the case, pressure sensing means that is placed inside the case and includes a pressure sensing surface for detecting pressure, and a breathable filter that is provided with the air passageway to cover at least one of the first and second openings. The pressure sensing means is fixed to the case through mounting means that allows the pressure sensing means to be spaced from the case to prevent stress that is applied to the pressure sensing means by the case.

Abstract: A pressure sensor is provided with a housing which has an opening portion for communicating an interior of the housing with an exterior, and a pressure detecting unit which has a detection surface for detecting a pressure applied thereto through the opening and is arranged in the housing. One of a perimeter of the detection surface and that of the opening portion has a protrusion portion which protrudes toward other of the perimeters. The other of the perimeters has a groove, into which a tip of the protrusion portion is inserted. A seal member is arranged between the groove and the protrusion portion, to seal therebetween and buffer stress caused by relative displacement between the housing and the pressure detecting unit.

Abstract: An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impedance change in the coil. The detection coil includes multiple coil portions provided by one wire. One coil portion has a side adjacent to a corresponding side of another coil portion. The side and the corresponding side extend along with a direction, and the side has a current flowing direction, which is the same as the corresponding side.

Abstract: In a vehicle collision sensing system, a relative pressure sensor senses a pressure difference between a pressure at an inside of a door interior space and a pressure at an outside of the door interior space. An air bag ECU determines the collision of the vehicle based on the pressure difference, which is sensed by the relative pressure sensor.

Abstract: A diaphragm-type pressure sensing apparatus includes a pressure sensor having a diaphragm for converting pressure into an electrical signal, a circuit board for processing the electrical signal, and a housing in which the pressure sensor and the circuit board are sealed. The pressure sensor is bonded to the housing and sandwiched between the circuit board fixed to the housing and the housing. This structure reduces compressive stress applied to the pressure sensor and the circuit board so that accuracy of the pressure sensing apparatus can be improved.

Abstract: Right and left side pressure sensors are provided to left and right doors, respectively, of a vehicle to sense a pressure in a door interior space of the corresponding door. An ECU computes a corrective pressure change amount that is obtained by correcting a change amount of a pressure, which is measured with a collided side one of the pressure sensors arranged in a collided one of the left and right doors that is collided with an object, based on a pressure, which is measured with a non-collided side one of the pressure sensors arranged in a non-collided one of the left and right doors that is not collided with the object. The ECU determines occurrence of the collision of the object based on the corrective pressure change amount.

Abstract: A passenger protecting system for a vehicle has a space defining member which partially constructs a chassis of the vehicle and defines therein an inner space deformable due to a collision of the vehicle, a pressure detection member which is arranged in the inner space to detect a pressure of air in the inner space, a temperature detection member which is arranged in the inner space to detect a temperature of air in the inner space, a determination unit, and a passenger protection device for protecting a passenger in the vehicle. The passenger protection device is actuated, when the determination unit determines that there occurs the collision of the vehicle based on a variation of the pressure and a variation of the temperature.

Abstract: A collision detection system for a vehicle is provided with multiple hollow members which are arranged at a periphery portion of the vehicle and define therein substantially closed spaces, at least one housing defining therein a substantially closed space, multiple transferring members for respectively communicating the spaces in the hollow members with the space in the housing, at least one detection unit which is arranged in the housing to detect a status of air in the housing, and a control unit. The control unit determines whether or not there occurs a collision of the vehicle based on detection signals from the detection unit.

Abstract: A pressure sensor includes a case with an air passageway having a first opening leading to an inside of the case and a second opening leading to an outside of the case, pressure sensing means that is placed inside the case and includes a pressure sensing surface for detecting pressure, and a breathable filter that is provided with the air passageway to cover at least one of the first and second openings. The pressure sensing means is fixed to the case through mounting means that allows the pressure sensing means to be spaced from the case to prevent stress that is applied to the pressure sensing means by the case.

Abstract: A pressure sensor is provided with a housing which has an opening portion for communicating an interior of the housing with an exterior, and a pressure detecting unit which has a detection surface for detecting a pressure applied thereto through the opening and is arranged in the housing. One of a perimeter of the detection surface and that of the opening portion has a protrusion portion which protrudes toward other of the perimeters. The other of the perimeters has a groove, into which a tip of the protrusion portion is inserted. A seal member is arranged between the groove and the protrusion portion, to seal therebetween and buffer stress caused by relative displacement between the housing and the pressure detecting unit.